Compose the adverse-media slice of the KYB envelope

Resolve an entity by (anchor, value) and return ONLY the adverse_media slice: recent news linking the entity to AML risk categories (financial crime, money laundering, fraud, corruption, bribery, sanctions evasion, terrorist financing, tax evasion). Linkage is keyword-based (entity name co-occurring with an AML risk term) and is supplementary and non-comprehensive. The GDELT GEG entity index confirms/disambiguates hits and raises precision (low keyword-only, medium entity recognized in the recent window, high the specific article was entity-extracted for this entity); disambiguation and entity_match report the confirmation state - see the slice coverage_note. This slice is SOFT: a data outage degrades to a null slice with meta.partial=true and returns 200, never 503 (the adverse path does not screen, so it cannot fail closed to 503).